Exhaust mechanism for engines.



G. H. MGGALL. EXHAUST MECHANISM FOR ENGINES.

APPLIOATIGN FILED JUNE 1, 1911.

Patented 5111379, 1912.

ported hpon said base, the hingesbeing disfor independently moving saw rings rehposed on opposite sides of said base, each of said rings being of frusto-conical'shape, the

large end of the lower ring being of the same size as and resting upon the top of said base, and the large lower end of the upper ring being the same size as and resting upon the small upper end of the other, and means 'tively to each other and to the base. 10

In testimony whereof I afix my signature in presenceof two Witnesses.

CHARNOCK H. MQCALL. Wijsnesses: J. T. CARNEY,

C. 0. BELL. 

